flake8-html cannot be packed by pyinstaller

[chrisixlalala]

• flake8-html version: 0.4.3
• flake8 version: 6.0.0
• Python version: 3.9.7 64 bit
• Operating System: Windonws OS

Description

We developed a SW to do code inspection. The flake8 and flake8-html works well. However, we tried to using pyinstaller to pack flake8-html , the flake8-html reported error. Seems that the flake8_html cannot be packed. Is there some kind of restriction here? Or any settings we should do?
Pyinstaller version: 5.3
Package command:
pyinstaller -F setup.py

What I Did

Traceback (most recent call last):
  File "setup.py", line 4, in <module>
    import flake8_html
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "PyInstaller\loader\pyimod02_importers.py", line 493, in exec_module
  File "flake8_html\__init__.py", line 9, in <module>